Application of Improved Differential Evolution Algorithm in solving Container-packing problems



Download 1.34 Mb.
Page4/31
Date18.10.2016
Size1.34 Mb.
#2671
1   2   3   4   5   6   7   8   9   ...   31

Changchun, Jilin 130022, China.

e-mail: yangzs@mail.jlu.edu.cn
Feng Liu

College of Traffic and Transportation

Jilin University

Changchun, Jilin 130022, China.


email: siye583@163.com

Abstract— The problem of designing queue length forecast strategies for bottle-neck junction is considered. The saturation flow and predicted flow achieved through urban road network model and traffic flow prediction model respectively are used as input variables to the queue prediction model based on the Store-and-forward methods to compute the queue length occurring during the green time for phase. Then, a simulation test is presented, of which the results read that the precision of prediction can reach up to 84%, certifying the efficiency of the proposed methods.

Keywords- urban road network model;Traffic flow prediction model; Store-and-forward based method

Research for Incremental Update Data Model applied in Navigation Electronic Map


Yan Liu and Zhaosheng Yang

College of Traffic and Transportation &

State Key Lab of Automobile Dynamic Simulation

Jilin University, Changchun, Jilin 130022, China

Liuy78@126.com ;yangzs@jlu.edu.cn

Xiufeng Han

Department of Traffic Info Engineering & Control

Changchun Municipal Planning Bureau

Changchun, Jilin 130022, China

16554912@qq.com

Abstract—Most of the present Car Navigation systems are usually update data off-line, which does not satisfy the high verisimilitude requirements in Navigation Electronic Map applied in vehicle navigation and some advanced driver assistance systems. Based on this problem, this paper presents the Static and Dynamic Incremental Data-Update model for Navigation Electronic Map. With the resources-saving, this model could improve the update efficiency, provide a high performance-cost-ratio and satisfy the high verisimilitude requirement.

Keywords- navigation electronic map; incremental updating; data model

To minimize the delay of signalized intersection using LP and NLP


Xuan Zhou

Department of Electronics and Information Engineering, Chonbuk National University, Jeonju, Jeonbuk 561756, South Korea

zhouxuan-happy@hotmail.com

Kil To Chong

Department of Electronics and Information Engineering, Chonbuk National University, Jeonju, Jeonbuk 561756, South Korea

kitchong@chonbuk.ac.kr

Abstract---This paper develops a new method for minimizing intersection delay based on linear and nonlinear program. On the basis of geometric construction, a new set of formulas are proposed to estimate the steady-and-oversaturation delay. As a dynamic model, it can automatically allocate the green time to obtain the minimal delay. Since the objective function of delay is linear or nonlinear, only the combination of linear and nonlinear program can be applied to random situation. The two objective functions, subject to corresponding constraints, can achieve the best split green ratios by MAT-LAB. The simulation result shows that green splits got by LP combined with NLP can obtain less delay than using fixed green splits.


Keywords-linear and nonlinear; delay; green split; objective function, constraints.

Application of NN-based Backstepping Adaptive Controller

for Stabilized Platform of Shipborne Weapons

Li-Dong Guo, Zhen-Fan Tan, Li-Xin Yang and Li-Jun Zhang

College of Automation

Harbin Engineering University

Harbin, Heilongjiang Province 150001, China

guolidong0409@hrbeu.edu.cn

Abstract—A neural network (NN)-based backstepping adaptive control is proposed for the stabilized platform system of shipborne weapons (SPOSW) with uncertain nonlinear friction torque and load disturbance. First, with the using of NN approximator, an equivalent model is developed. Where the NN is used to estimate the uncertain nonlinear friction torque. Then, based on the equivalent model, address the problem of reconstruction error and disturbance load, an adaptive backstepping control scheme is proposed for the stabilized platform system. Moreover, the analysis of stability can be completed by Lyapunov stability theory, and the convergence rate of the tracking error can be governed by the choice of the control parameter values. Finally, to demonstrate the effectiveness of the proposed control scheme, simulation results are illustrated.

Keywords- Shipborne weapons; Adaptive control; Neural networks; Backstepping control; Lyapunov stability theory.


Self-tuning Controller for Servo Motor with an Adaptive Disturbance Observer


Hongkui Li

School of Science

Shenyang Ligong University

Shenyang, China

lhkdoc@yahoo.com.cn

Qinglin Wang

Department of Economic Management

Liaoning Provincial College of Communications

Shenyang, China

wqlin1975@126.com

Abstract—In this paper, the state-space disturbance observer was successfully applied to servo motors to estimate and compensate for load variation. Furthermore, an auto-tuning procedure was developed accordingly to identify the varied parameters for state-space disturbance observer of the motor. Then, a real-time IP position controller based on identified parameters is designed by neural network for permanent magnet synchronous motor (PMSM) servo system. The neural networks configuration is simple and reasonable, and the weight has definitely physical meaning. It has rapidly adjusting character to realize the real-time control. The simulation results show that the proposed control scheme not only enhances the fast tracking performance, but also increases the robustness of the servo system.

Keywords- disturbance observer; identification; servo system ;self-tuning; neural network

Trace Analysis and Identification on Un-motor Vehicle Driving State in Traffic Accident


ZHANG Han-xin

College of Traffic of Jilin University (study)

China Criminal Police University (work)

Changchun,Jilin / Shenyang, Liaoning, P.R.China

E-mail: katie886@126.com

XU Hong-guo/ TAN Li-dong

College of Traffic

Jilin University

5988 Renmin Street, Changchun, P.R.China

E-mail:xuhg@jlu.edu.cn / tanld@jlu.edu.cn

Abstract—the quickly developed bicycle in the un-motor vehicle is taken as example. From the three aspects of the strike vehicle, the no-motor vehicle and the cyclist which micro materials interchanged and the superficial attachment extracted, it provided the basis and the method to recognize the suspicion vehicles. According to the consults of massive correlation data, the accident scene record and participated many illustrative cases, the trace examination and appraisal method were classified and compiled. Mainly from trace aspects of vehicles, this question have been analyzed and expounded. So the reconstruction of accident scene can be done. It provides the method and the mentality to determine the driving state of bike in the traffic accident, enhances the accuracy and the fairness, which make the traffic accident responsibility recognized.

Keywords-traffic accident; driving state; un-motorizing vehicle; trace

RESEARCH OF FAULT-TOLERANT REDUNDANCY AND FAULT DIAGNOSIS TECHNOLOGY BASED ON CAN

ZHENYE WANG, XIAOSONG GUO, CHUANQIANG YU

Xi’an Research Inst. of Hi-tech, China, 710025

Email:wzy20040412@163.com

Abstract:

To enhance the reliability of the CAN bus, the relevant research in the CAN design and the Fault Diagnosis of the CAN-bus is carried out. The advantages of the analytical redundancy fault-tolerant control concepts and the hardware redundancy fault-tolerant control concept are effectively integrated and the control area network based on fault-tolerant redundancy technology is designed according to these ideas; an experiment setup is built to perform the Hard Fault detection of three CAN nodes. The experiment results verified that the resistance detection method can detect and locate the fault point of the CAN-bus permanent failure.

Keywords:

CAN; Fault-tolerant redundancy technology; resistance detection method; Hard Fault; Soft Fault

Study on Dynamic Route Guidance Method of Vehicle Based on Travel Time Reliability


Manrong Yuan

College of Traffic and Transportation &State Key Lab of Automobile

Dynamic Simulation, Jilin University,

Changchun, Jilin 130022, China.

Zhaosheng Yang*

College of Traffic and Transportation &State Key Lab of Automobile

Dynamic Simulation, Jilin University,

Changchun, Jilin 130022, China.

Shifeng Niu

College of Traffic and Transportation

Jilin University

Changchun, Jilin 130022,China

e-mail: yuanmanrong@vip.sina.com


e-mail: yangzs@mail.jlu.edu.cn
e-mail:nsf512@yahoo.com.cn

Abstract—This paper proposes a method for application in dynamic route guidance using travel time reliability. The definition and calculation method of Travel time reliability of road section, road path and road network is given in this paper, and three road impedance functions are design for different layer. Based on the road impedance functions and road network model, the reliable dynamic route guidance method (RDRGM) proposed to give the optimal routes, whose objective is not only fast, but is also reliable. The performance of RDRGM is evaluated using simulation data. The experimental results indicate that the proposed RDRGM is satisfactory.

Keywords-dynamic route guidance; travel time reliability; road impedance

The Pressure Testing Machine Based on Variable

Universe Fuzzy PID Algorithm

Guoqiang Cao&Zongling Cao

Shengyang Institute of Aeronautical Engineering

School of Mechanical and Electrical Engineering

Liaoning, China

E-mail:qq286618571@163.com

Ji Gao&Tanji Yu

Shengyang Institute of Aeronautical Engineering

School of Mechanical and Electrical Engineering

Liaoning, China

E-mail:caozonglingczl@163.com

Abstract—The control system of pressure testing machine is uncertainty, nonlinear and it is vulnerable to the impact of load change. In this paper, a new variable universe fuzzy PID control algorithm is introduced to solve the problem of the fuzzy controlling dead zone and the adjustment of PID control algorithm, which is based on the perfect theory of PID controller. Compared with the traditional control algorithms, the simulation results of the test-bed, which is based on MATLAB /Simulink 6.0 show that the new control algorithms has strong adaptability and improve the control precision and the dynamic performance.

Keyword- pressure testing machine; nonlinear system; variable universe fuzzy PID; Matlab/Simulink 6.0

Understanding the STEP-NC Data Model for Computer Numerical control


Yu Zhang

1School of Mechanical Engineering and Automation

Northeastern University

Shenyang, China

e-mail: zy4097534@126.com

2Department of Mechanical Engineering

University of Auckland

Auckland, New Zealand

e-mail: yzha540@aucklanduni.ac.nz

Xiaolan Bai

1School of Mechanical Engineering and Automation

Northeastern University

Shenyang, China

e-mail: baixiaonan@yeah.net

Xun Xu


2Department of Mechanical Engineering

University of Auckland

Auckland, New Zealand

e-mail: x.xu@auckland.ac.nz


Yongxian Liu

1School of Mechanical Engineering and Automation

Northeastern University

Shenyang, China

e-mail: yxliu@mail.neu.edu.cn

Abstract—STandard for the Exchange of Product data-compliant Numerical Control (STEP-NC) is a new model of data transfer between CAD/CAM systems and CNC machines. It remedies the shortcomings of ISO 6983 by specifying machining processes rather than machine tool motion, using the object-oriented concept of Workingsteps. STEP-NC is being developed concurrently under two different subcommittees of ISO Technical Committee 184, Industrial automation systems and integration so that two different standards, ISO 14649 Data model for computerized numerical controllers and ISO 10303-238 Application interpreted model for computer numeric controllers are generated, both of which can be represented in 10303-21. In this paper, ISO 14649 NC program in Part21 relative to Example 1 in the ISO 14649-11 is explained in detail so that people can easily understand the object-oriented data model and the advantages of ISO 14649 from the actual example other than abstract and unintelligible theory. Probably, more beginners can get some revelation so that STEP or STEP-NC can get more attention and their development will be faster.

Keywords-component; STEP-NC; computer numerical control;ISO 14649; data model

The Routing Algorithm of Link-disjoint Paths based on Ant Colony System in Ad Hoc Networks

Zhenchao Wang, Jing Wang, Yijin Wang

College of Electronic and Information Engineering

HeBei University

BaoDing, China

Email: xuanguan2004@163.com

Abstract—In order to reduce the congestion of Ad Hoc network and increase the speed of routing searching , the link-disjoint paths algorithm based on ant colony optimization is proposed in this paper. The new algorithm introduces the intelligence and positive feedback of ant algorithm to link-disjoint paths algorithm to improve the probability of path optimization, sets the age domain of ant to reduce immersion, and lets the ants search routing parallelly to increase the speed. Besides, in order to reduce the occupancy of network resources, only the ants which carry the final routing data are allowed to return to the source node. The simulation results show that the new algorithm is effective and superior to the original link-disjoint paths algorithm.

Key words-the ant colony algorithm; Ad Hoc network; link-disjoint paths; routing algorithm

Cooperative Time Synchronization Based on Industrial Wireless Networks

Xiaotong Zhang1), Guolin Hu2)

1. School of Information Engineering

University of Science and Technology Beijing

2. Beijing Aerospace Control Center

Beijing, China

xunause@sohu.com

Na Xu1), Yunjie Zhang1,3)

3. Tianjin Institute of Urban Construction

Tianjin, China

masterhgl@sina.com


Abstract—According to spatial averaging and not traditional time averaging, cooperative time synchronization supposes a new method for time synchronization in wireless sensor networks. In this work, we present a cooperative time synchronization protocol that uses broadcasting and spatial averaging for the characters of industrial wireless networks. This protocol can dynamically adjust the received rate of the time synchronization messages on time and space, in order to achieve high precision and strong robust. Simulation estimates that the protocol has much better synchronization performance than traditional protocol only using time averaging in multiple-hop networks.

Keywords—industrial wireless sensor networks; time synchronization; cooperation; spatial average

A concept of distributional control system targeting relational rent links

of global value chains

Yang lei


School of Tourism & Hospitality Management

Shenyang Normal University

School of business administration

Northeastern university

Shenyng, China

e-mail: yanglei2000@126.com

Du xiaojun

School of business administration

Northeastern university

Shenyng, China

e-mail: du_xiaojun@sina.com
Dai weidong

School of management


Shenyang university of technology

Shenyng, China

Abstract- for many firms, embedding global value chain is a requirement to gain continual competitiveness. Different links of GVC may produce different rents. Relational rent created by actors’ collaboration of a link is an important resource of super profits. Relational rent distribution determines the cooperative performance. A distributional control system can assistant participants evaluate cooperative intents, make fair distributional decision. Digging requirement of this given domain, designing concept of distributional system and paying attention to intercultural and inter-organizational apply can help firms embedding GVC improve the ability of gain relational rent and continual competitiveness.

Keywords-rent distribution; GVC; requirement elicitation; stakeholder-driven


Research on Maximum Power Point Tracker Based on Solar Cells Simulator

Wei Peiyu, Tan Boxue, Zhang Housheng, Zhao Yanlei

School of Electrical & Electronic Engineering

Shandong University of Technology

Zibo, Shandong, China

zhseda@163.com

Abstract—The output power of solar cells varies with variable temperature, light intensity and loads. In order to solve the shortcomings such as long time and high cost of using solar cells to experiment, this paper successfully uses a DC power supply and a variable resistor to simulate the solar cells output characteristic curve, its feasibility is analyzed theoretically. The basic principle of the maximum power point tracking (MPPT) is described in detail. An improved disturbance method with variable voltage step is introduced, it inherits the advantages of traditional disturbance voltage method, overcomes the shortcoming of slow response of traditional method, reduces the power loss caused by maximum power point due to continuous disturbance, and realizes the maximum power point tracking for solar cells. The proposed method improves the system's speed and efficiency. The experimental results show that the system can track the maximum power point accurately and quickly.

Keywords-solar cells; maximum power point tracking (MPPT); Cuk converter ; simulator

Single Phase Photovoltaic Grid-connected Inverse Power System Based on DSP

Zhang Housheng, Zhao Yanlei

School of Electrical & Electronic Engineering

Shandong University of Technology

Zibo, Shandong, China

zhseda@163.com

Abstract—As the energy crisis and the pollution are serious, the exploitation of solar has received more and more attentions. The configuration and principle of photovoltaic grid-connected power system are analyzed in detail. The method of maximum power point tracking is designed and the control principle of voltage and current double closed-loop is analyzed in this paper. At the same time an improved phase locked tracking method combined with software and hardware is presented. The experimental results show that the current waveform of grid-connected inverter has the same frequency and phase angle with the grid voltage, the power factor of grid-connected inverter is 0.999, which meets the design requirement entirely.

Keywords-energy resources; solar cells; maximum power point tracking (MPPT); photovoltaic array; grid-connected inverter; phase-locked loop(PLL)

Transportation and Storage Problems

for Regional Power Coal Allocation Planning of China

Debin FANG

Economics and Management School

Wuhan University

Wuhan, Hubei Province, China

dbfang@whu.edu.cn


Ming ZHANG

Economics and Management School

Wuhan University

Wuhan, Hubei Province, China

zhang02ming@sohu.com
Chun YE

The State Electricity Regulatory

Commission

Beijing, China

yechun@serc.gov.cn

Abstract—With the reformation of China’s electric power and power coal system, several difficulties emerge in planning annual coal purchase and allocation schedule, e.g., with multiple sources, multiple destinations, different shipping vessels. So it is important to research on the transportation and storage problems for regional power coal allocation planning of China. In this study, these concerns are formulated as transportation and storage problems to realize the minimization of the regional transportation and storage cost. Furthermore, an effective optimization model is proposed to solve transportation and storage problems for regional power coal allocation planning integrating storage capacities of the different kinds of enterprises in the supply chain, which considers interactive effect on multiple participants, such as regional power plants, coal transportation companies, logistics centers, coal storage centers. A case study illustrates that the model and algorithm are reasonable compared with the classic transportation model, and the sensitivity analysis improves transportation and storage strategies for regional power coal allocation planning. Results obtained in this study clearly demonstrate that this model can not only satisfy more of the actual requirements of the integral system but also offer more information to the decision makers (DMs) for reference in favor of exalting decision making quality.

Keywords- power coal; transportation problems; storage problems; optimization model, allocation

Method of dynamic multi-criteria decision-making based on integration of absolute and relative differences

Dong Qing-xing

School of Business Administration,Northeastern University(NEU)

Shenyang ,China

dongqx3@126.com

Guo Ya-jun

School of Business Administration,NEU

Shenyang ,China

yjguo-2001@163.com

He Zhi-yong

School of Business Administration,NEU

Shenyang ,China

dzyzsj@163.com

Abstract—Most of the traditional dynamic multi-criteria decision-making methods utilize only differences of the systems’ evaluation values (which can be called absolute difference), then the conclusion of the evaluation is unfair to some evaluated objects. In consideration of disadvantages of the traditional method, a new method based on integration of absolute and relative differences is suggested. In this method, differences of systems’ developing status (relative difference) are taken into consideration. So more information can be put in and then produced out so as to approach reality closer. And also both the subjective and objective information are integrated. Finally, a numerical example was given to illustrate the effectiveness of the proposed method.

Keywords—absolute difference; relative difference; integration of subjectivity and objectivity; dynamic multi-criteria decision-making


Improved Ant Colony Algorithm

for Power Distribution Network Planning

ZHU Jia-mei

Information and Computer Engineering College

Northeast Forestry University

Harbin, 150040,China

efp@sohu.com

REN Hong-e

Information and Computer Engineering College

Northeast Forestry University

Harbin, 150040,China

renhonge163@163.com

Abstract—Proposesing a multi-state adaptive ant pheromones mechanism base on researching on ant colony algorithm model,pheromones update and pheromones selection had been improved. Make up the traditional ant colony algorithm for the calculation of distribution network planning that is slow and easy to fall into local optimal solution.And improved the convergence of the optimal solution.the validity of the improved algorithm has been verified using a testing function.Moreover,a satisfactory optimum solution for a Power Distribution Network Planning that has 73 user has been obtained.And the effective design method for permanent-magnet synchronous motor has been suggested based on the improved ACO.

Keywords- Keyword:Ant Colony Algorithm;Power Distributi-

on Netwok Planning;Optimization; dynamic adaptive


The Improvement Study of Model for Humidity Sensor Based on Quartz Glass


Dongmei Feng



Download 1.34 Mb.

Share with your friends:
1   2   3   4   5   6   7   8   9   ...   31




The database is protected by copyright ©ininet.org 2024
send message

    Main page